| Zip Code | City | Population ↓ |
|---|---|---|
| 12839 | Hudson Falls | 13,764 |
| 12828 | Fort Edward | 9,590 |
| 12832 | Granville | 6,486 |
| 12834 | Greenwich | 6,261 |
| 12887 | Whitehall | 4,720 |
| 12816 | Cambridge | 4,626 |
| 12827 | Fort Ann | 3,673 |
| 12809 | Argyle | 3,612 |
| 12865 | Salem | 3,448 |
| 12821 | Comstock | 2,378 |
| 12057 | Eagle Bridge | 1,997 |
| 12028 | Buskirk | 1,082 |
| 12837 | Hampton | 879 |
| 12873 | Shushan | 875 |
| 12838 | Hartford | 721 |
| 12861 | Putnam Station | 556 |
| 12823 | Cossayuna | 502 |
| 12849 | Middle Granville | 425 |
| 12844 | Kattskill Bay | 293 |
| 12819 | Clemons | 286 |
| 12854 | North Granville | 98 |
| 12841 | Huletts Landing | 95 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 22 ZCTAs in Washington County, New York (US Census).